<?php

if (! defined('BASEPATH'))
    exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package CodeIgniter
 * @author ExpressionEngine Dev Team
 * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license http://codeigniter.com/user_guide/license.html
 * @link http://codeigniter.com
 * @since Version 1.0
 * @filesource
 *
 */
    
// ------------------------------------------------------------------------

/**
 * CodeIgniter Inflector Helpers
 *
 * @package CodeIgniter
 * @subpackage Helpers
 * @category Helpers
 * @author ExpressionEngine Dev Team
 * @link http://codeigniter.com/user_guide/helpers/directory_helper.html
 */
    
// --------------------------------------------------------------------

/**
 * Singular
 *
 * Takes a plural word and makes it singular
 *
 * @access public
 * @param
 *            string
 * @return str
 */
if (! function_exists('singular')) {

    function singular ($str)
    {
        $result = strval($str);
        
        $singular_rules = array(
                '/(matr)ices$/' => '\1ix',
                '/(vert|ind)ices$/' => '\1ex',
                '/^(ox)en/' => '\1',
                '/(alias)es$/' => '\1',
                '/([octop|vir])i$/' => '\1us',
                '/(cris|ax|test)es$/' => '\1is',
                '/(shoe)s$/' => '\1',
                '/(o)es$/' => '\1',
                '/(bus|campus)es$/' => '\1',
                '/([m|l])ice$/' => '\1ouse',
                '/(x|ch|ss|sh)es$/' => '\1',
                '/(m)ovies$/' => '\1\2ovie',
                '/(s)eries$/' => '\1\2eries',
                '/([^aeiouy]|qu)ies$/' => '\1y',
                '/([lr])ves$/' => '\1f',
                '/(tive)s$/' => '\1',
                '/(hive)s$/' => '\1',
                '/([^f])ves$/' => '\1fe',
                '/(^analy)ses$/' => '\1sis',
                '/((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)ses$/' => '\1\2sis',
                '/([ti])a$/' => '\1um',
                '/(p)eople$/' => '\1\2erson',
                '/(m)en$/' => '\1an',
                '/(s)tatuses$/' => '\1\2tatus',
                '/(c)hildren$/' => '\1\2hild',
                '/(n)ews$/' => '\1\2ews',
                '/([^u])s$/' => '\1'
        );
        
        foreach ($singular_rules as $rule => $replacement) {
            if (preg_match($rule, $result)) {
                $result = preg_replace($rule, $replacement, $result);
                break;
            }
        }
        
        return $result;
    }
}

// --------------------------------------------------------------------

/**
 * Plural
 *
 * Takes a singular word and makes it plural
 *
 * @access public
 * @param
 *            string
 * @param
 *            bool
 * @return str
 */
if (! function_exists('plural')) {

    function plural ($str, $force = FALSE)
    {
        $result = strval($str);
        
        $plural_rules = array(
                '/^(ox)$/' => '\1\2en', // ox
                '/([m|l])ouse$/' => '\1ice', // mouse, louse
                '/(matr|vert|ind)ix|ex$/' => '\1ices', // matrix, vertex, index
                '/(x|ch|ss|sh)$/' => '\1es', // search, switch, fix,
                                                      // box, process, address
                '/([^aeiouy]|qu)y$/' => '\1ies', // query, ability, agency
                '/(hive)$/' => '\1s', // archive, hive
                '/(?:([^f])fe|([lr])f)$/' => '\1\2ves', // half, safe, wife
                '/sis$/' => 'ses', // basis, diagnosis
                '/([ti])um$/' => '\1a', // datum, medium
                '/(p)erson$/' => '\1eople', // person, salesperson
                '/(m)an$/' => '\1en', // man, woman, spokesman
                '/(c)hild$/' => '\1hildren', // child
                '/(buffal|tomat)o$/' => '\1\2oes', // buffalo, tomato
                '/(bu|campu)s$/' => '\1\2ses', // bus, campus
                '/(alias|status|virus)/' => '\1es', // alias
                '/(octop)us$/' => '\1i', // octopus
                '/(ax|cris|test)is$/' => '\1es', // axis, crisis
                '/s$/' => 's', // no change (compatibility)
                '/$/' => 's'
        );
        
        foreach ($plural_rules as $rule => $replacement) {
            if (preg_match($rule, $result)) {
                $result = preg_replace($rule, $replacement, $result);
                break;
            }
        }
        
        return $result;
    }
}

// --------------------------------------------------------------------

/**
 * Camelize
 *
 * Takes multiple words separated by spaces or underscores and camelizes them
 *
 * @access public
 * @param
 *            string
 * @return str
 */
if (! function_exists('camelize')) {

    function camelize ($str)
    {
        $str = 'x' . strtolower(trim($str));
        $str = ucwords(preg_replace('/[\s_]+/', ' ', $str));
        return substr(str_replace(' ', '', $str), 1);
    }
}

// --------------------------------------------------------------------

/**
 * Underscore
 *
 * Takes multiple words separated by spaces and underscores them
 *
 * @access public
 * @param
 *            string
 * @return str
 */
if (! function_exists('underscore')) {

    function underscore ($str)
    {
        return preg_replace('/[\s]+/', '_', strtolower(trim($str)));
    }
}

// --------------------------------------------------------------------

/**
 * Humanize
 *
 * Takes multiple words separated by underscores and changes them to spaces
 *
 * @access public
 * @param
 *            string
 * @return str
 */
if (! function_exists('humanize')) {

    function humanize ($str)
    {
        return ucwords(preg_replace('/[_]+/', ' ', strtolower(trim($str))));
    }
}


/* End of file inflector_helper.php */
/* Location: ./system/helpers/inflector_helper.php */